diff --git a/src/pages/popup/components/Footer/DurationSelect.tsx b/src/pages/popup/components/Footer/DurationSelect.tsx
index 3c471746..10d3abce 100644
--- a/src/pages/popup/components/Footer/DurationSelect.tsx
+++ b/src/pages/popup/components/Footer/DurationSelect.tsx
@@ -20,7 +20,7 @@ const cvt2Opt = (value: PopupDuration, n?: string | number): CascaderOption => (
 
 const options = (reverse?: boolean): CascaderOption[] => {
     const result: CascaderOption[] = [
-        ...(['today', 'thisWeek', 'thisMonth', 'yesterday'] satisfies PopupDuration[]).map(cvt2Opt),
+        ...(['today', 'yesterday', 'thisWeek', 'thisMonth'] satisfies PopupDuration[]).map(cvt2Opt),
         {
             ...cvt2Opt('lastDays', 'X'),
             children: [
diff --git a/src/pages/popup/components/Percentage/chart.ts b/src/pages/popup/components/Percentage/chart.ts
index 672ce0df..55e8b616 100644
--- a/src/pages/popup/components/Percentage/chart.ts
+++ b/src/pages/popup/components/Percentage/chart.ts
@@ -73,12 +73,34 @@ function formatTotalStr(rows: timer.stat.Row[], type: timer.core.Dimension | und
 }
 
 function calculateSubTitleText(result: PercentageResult): string {
-    let { date, dataDate, rows, query: { dimension } = {} } = result
+    let { date, dataDate, rows, query: { dimension, duration } = {}, dateLength } = result
     const dateStr = dataDate ? formatDateStr(date, dataDate) : ''
     const totalStr = formatTotalStr(rows, dimension)
-    let parts = [totalStr, dateStr].filter(str => !!str)
+
+    // Calculate average per day
+    let averageStr = ''
+    // Don't show averages for single-day durations (today/yesterday)
+    const isSingleDay = duration === 'today' || duration === 'yesterday'
+
+    if (dateLength && dateLength > 0 && !isSingleDay) {  // Changed: removed dimension check
+        if (dimension === 'focus') {
+            // Average time per day
+            const total = sum(rows.map(r => r?.focus ?? 0))
+            const averagePerDay = total / dateLength
+            const averageTime = formatPeriodCommon(averagePerDay)
+            averageStr = '(' + t(msg => msg.content.percentage.averageTime, { value: averageTime }) + ')'
+        } else if (dimension === 'time') {
+            // Average visits per day
+            const totalCount = sum(rows.map(r => r.time ?? 0))
+            const averagePerDay = totalCount / dateLength
+            const averageCount = averagePerDay.toFixed(1)
+            averageStr = '(' + t(msg => msg.content.percentage.averageCount, { value: averageCount }) + ')'
+        }
+    }
+
+    let parts = [totalStr, dateStr, averageStr].filter(str => !!str)
     isRtl() && (parts = parts.reverse())
-    return parts.join(' @ ')
+    return parts.join(' ')
 }
 
 export function generateTitleOption(result: PercentageResult, suffix?: string): TitleComponentOption {
@@ -265,13 +287,11 @@ export function formatTooltip({ query, dateLength }: PercentageResult, params: T
     const format = (Array.isArray(params) ? params[0] : params)
     const { name, value, percent, data } = format ?? {}
     const { row } = data as PieSeriesItemOption
-    const { dimension } = query
+    const { dimension, duration } = query
     const itemValue = typeof value === 'number' ? value as number : 0
-
     let valueLine = dimension === 'time' ? itemValue : formatPeriodCommon(itemValue)
     // Display percent only when query focus time
     dimension === 'focus' && (valueLine += ` (${percent}%)`)
-
     let nameLine = name
     let averageLine: string | undefined = undefined
     if (!isOther(row)) {
@@ -279,11 +299,13 @@ export function formatTooltip({ query, dateLength }: PercentageResult, params: T
             const { siteKey: { host } } = row
             nameLine = generateSiteLabel(host, name)
         }
-        if (dateLength && dateLength > 1) {
+        // Don't show averages for single-day durations (today/yesterday)
+        const isSingleDay = duration === 'today' || duration === 'yesterday'
+
+        if (dateLength && dateLength > 1 && !isSingleDay) {  // Changed: simplified condition
             averageLine = calculateAverageText(dimension, itemValue / dateLength)
         }
     }
-
     return [nameLine, valueLine, averageLine].filter(l => !!l).join('<br />')
 }
 
diff --git a/src/pages/popup/components/Percentage/query.ts b/src/pages/popup/components/Percentage/query.ts
index 57bf2961..da3f0362 100644
--- a/src/pages/popup/components/Percentage/query.ts
+++ b/src/pages/popup/components/Percentage/query.ts
@@ -49,10 +49,20 @@ export const doQuery = async (query: PopupQuery, option: PopupOption): Promise<P
     const [rows, date] = await queryRows(query)
     const groups = await listAllGroups()
 
+    const dataDate = findDateRange(rows)
+
+    // Count actual unique days with data
+    const allDatesSet = new Set<string>()
+    rows?.forEach(row => {
+        const dates = findAllDates(row)
+        dates.forEach(d => allDatesSet.add(d))
+    })
+    const dateLength = allDatesSet.size > 0 ? allDatesSet.size : (date instanceof Array ? getDayLength(date[0], date[1] ?? new Date()) : 1)
+
     return {
         query, rows,
-        date, dataDate: findDateRange(rows),
-        dateLength: date instanceof Array ? getDayLength(date[0], date[1] ?? new Date()) : 1,
+        date, dataDate,
+        dateLength,
         displaySiteName,
         chartTitle: t(msg => msg.content.percentage.title[query?.duration], { n: query?.durationNum }),
         itemCount,
diff --git a/src/util/time.ts b/src/util/time.ts
index 2a0f0699..86a13eef 100644
--- a/src/util/time.ts
+++ b/src/util/time.ts
@@ -105,15 +105,15 @@ export function formatPeriod(milliseconds: number, message: Record<'dayMsg' | 'h
  */
 export function formatPeriodCommon(milliseconds: number): string {
     const defaultMessage = isRtl() ? {
-        dayMsg: 's {second} m {minute} h {hour} d',
-        hourMsg: 's {second} m {minute} h {hour}',
-        minuteMsg: 's {second} m {minute}',
-        secondMsg: 's {second}',
+        dayMsg: 's{second} m{minute} h{hour} d',
+        hourMsg: 's{second} m{minute} h{hour}',
+        minuteMsg: 's{second} m{minute}',
+        secondMsg: 's{second}',
     } : {
-        dayMsg: '{day} d {hour} h {minute} m {second} s',
-        hourMsg: '{hour} h {minute} m {second} s',
-        minuteMsg: '{minute} m {second} s',
-        secondMsg: '{second} s',
+        dayMsg: '{day}d {hour}h {minute}m {second}s',
+        hourMsg: '{hour}h {minute}m {second}s',
+        minuteMsg: '{minute}m {second}s',
+        secondMsg: '{second}s',
     }
     return formatPeriod(milliseconds, defaultMessage)
 }
diff --git a/test/util/time.test.ts b/test/util/time.test.ts
index efab523e..40785c10 100644
--- a/test/util/time.test.ts
+++ b/test/util/time.test.ts
@@ -38,9 +38,9 @@ test('format', () => {
     }
     expect(formatPeriod(86400 * 1000, msg)).toEqual('1天0时0分0秒')
     expect(formatPeriod(3666 * 1000, msg)).toEqual('1时1分6秒')
-    expect(formatPeriodCommon(86400 * 1000)).toEqual('1 d 0 h 0 m 0 s')
-    expect(formatPeriodCommon(3666 * 1000)).toEqual('1 h 1 m 6 s')
-    expect(formatPeriodCommon(1)).toEqual('0 s')
+    expect(formatPeriodCommon(86400 * 1000)).toEqual('1d 0h 0m 0s')
+    expect(formatPeriodCommon(3666 * 1000)).toEqual('1h 1m 6s')
+    expect(formatPeriodCommon(1)).toEqual('0s')
 })
 
 test('days ago', () => {